#include<bits/stdc++.h>
#define int long long
#define endl "\n"

using namespace std;

signed main() {
	int a[10];
	cin >> a[1] >> a[2] >> a[3];
	sort(a + 1, a + 3 + 1);
	if(a[1] == a[2] && a[1] == a[3]) {
		cout << "Yes\n";
	} else if(a[1] + a[2] == a[3]) {
		cout << "Yes\n";
	} else {
		cout << "No\n";
	}
	return 0;
}

